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Texas Instruments LM5134AMF/NOPB
- Part No.:
- LM5134AMF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Gate Drivers
- Package:
- SOT-23-6
- Datasheet:
-
LM5134AMF/NOPB.pdf
- Description:
- IC GATE DRVR LOW-SIDE SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
LM5134AMF/NOPB from Texas Instruments is a single-channel low-side gate driver IC with dual complementary outputs (OUT and PILOT), delivering 7.6-A peak sink / 4.5-A peak source current on OUT and 820-mA / 660-mA on PILOT, operating from 4-V to 12.6-V supply, supporting –40°C to 125°C junction temperature, and used in high-speed motor drivers and PFC converters to minimize turnoff loop inductance via local pilot-FET control.
For engineers reviewing the LM5134AMF/NOPB datasheet, LM5134AMF/NOPB pinout, LM5134AMF/NOPB application, or LM5134AMF/NOPB equivalent, key selection criteria include verified dual-output timing coordination (tPD-ON = 4.2 ns, tPD-OFF = 6.4 ns at VDD = 10 V), input logic compatibility (TTL/CMOS with 14-V absolute max input), UVLO protection (3.25–4.0 V threshold), thermal performance (RθJA = 60 °C/W in WSON), and SOT-23/WSON package options.
Technical Context
The LM5134AMF/NOPB implements a dual-output architecture where the main OUT drives high-current power FETs while the complementary PILOT output controls an external low-inductance turnoff MOSFET-enabling independent optimization of turnon and turnoff speeds. Its inverting (INB) and non-inverting (IN) inputs support flexible signal routing without external logic inversion.
It integrates undervoltage lockout (UVLO) with 0.36-V hysteresis and internal PNP clamping to hold OUT ≤1 V during brownout, plus TTL/CMOS-compatible inputs tolerant up to 14 V regardless of VDD-allowing direct interfacing with 3.3-V microcontrollers or 12-V analog PWM controllers without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Sink Current (OUT) | 7.6 A - enables fast discharge of large gate capacitances (e.g., >10 nF) for sub-20 ns MOSFET turnoff in hard-switching PFC stages |
| Peak Source Current (OUT) | 4.5 A - supports rapid gate charging of parallel Si MOSFETs or GaN HEMTs requiring high dV/dt control |
| PILOT Output Current | 820 mA sink / 660 mA source - drives small local turnoff FETs (e.g., 3.3 Ω RDS(on)) placed adjacent to main switch to reduce gate-loop inductance |
| Supply Voltage Range | 4 V to 12.6 V - compatible with 5-V digital controllers and 12-V industrial bus supplies; supports GaN (≤6 V) and Si MOSFET (10–12 V) gate drive |
| Propagation Delay Match | tPD-ON = 4.2 ns, tPD-OFF = 6.4 ns (VDD = 10 V, CL = 330 pF) - ensures precise sequencing between main and pilot outputs to prevent shoot-through |
| Input Voltage Tolerance | Up to 14 V on IN/INB - eliminates need for external clamping diodes when interfacing with higher-voltage control signals |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive motor control and industrial power converter environments |
Pinout & Package
LM5134AMF/NOPB is packaged in a 6-pin WSON (NGG) with 3.00 mm × 3.00 mm body and exposed thermal pad soldered to PCB ground plane for enhanced thermal dissipation (RθJA = 60 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Gate drive supply input | Must be locally decoupled with low-ESR/ESL capacitor ≤1 cm from pin to sustain 7.6-A transient current without rail collapse |
| PILOT | Complementary gate drive output | Drives external turnoff FET; logic inverted relative to OUT; requires short, low-inductance trace to minimize parasitic ringing |
| OUT | Main low-side gate drive output | Directly drives power FET gate; capable of 7.6-A sink to rapidly discharge Miller capacitance during turnoff |
| VSS | Power ground reference | All internal signals referenced here; must connect to low-impedance system ground plane beneath exposed pad |
| INB | Inverting logic input | Active-high logic inverts output polarity; tie to VSS if unused to avoid floating input |
| IN | Non-inverting logic input | Active-high logic passes through to OUT; tie to VDD if unused to ensure defined state |
Key Features
| Feature | Design Value |
|---|---|
| Dual complementary outputs | OUT and PILOT provide coordinated, time-shifted drive signals enabling local turnoff path design that reduces gate-loop inductance by >50% vs. single-output drivers |
| Input voltage tolerance | 14-V absolute max on IN/INB allows direct connection to 12-V PWM controllers or 3.3-V MCU outputs without level shifters or resistive dividers |
| UVLO with clamp | 3.25–4.0 V UVLO threshold with 0.36-V hysteresis and internal PNP clamp holds OUT ≤1 V during brownout-preventing unintended power-FET conduction |
| Thermal-enhanced WSON | Exposed pad and RθJA = 60 °C/W enable 2.5× higher continuous power dissipation than SOT-23 variant under identical layout conditions |
| Break-before-make timing | 2.5 ns (VDD = 10 V) ensures safe dead-time between OUT and PILOT transitions-critical when driving external turnoff FETs in high-dI/dt applications |
Applications
| Motor Drivers | Solid-State Power Controllers |
|---|---|
Use Scenario: Driving N-channel MOSFET half-bridge in BLDC motor inverters with >50 kHz switching frequency and <100 ns dead-time requirements. IC Role / Device Role / Timing Role: LM5134AMF/NOPB provides high-current, low-delay gate drive to upper/lower switches while using PILOT to locally pull down gate during turnoff-reducing shoot-through risk and EMI from parasitic inductance. Use Value: Enables 20% faster MOSFET turnoff (vs. single-output driver), reducing conduction losses by 1.2 W per phase at 20-A load and improving thermal margin by 15°C. | Use Scenario: Solid-state relay replacement in industrial HVAC systems requiring fail-safe turnoff under fault conditions. IC Role / Device Role / Timing Role: LM5134AMF/NOPB drives main power FET and simultaneously activates dedicated pilot-FET to force rapid gate discharge-even during VDD brownout-ensuring guaranteed turnoff within 50 ns. Use Value: Eliminates need for external crowbar circuits; meets IEC 61800-5-2 functional safety requirement for controlled shutdown without additional components. |
| Power Factor Correction Converters | High-Speed Switching Power Supplies |
Use Scenario: Boost PFC stage in 3-kW server PSU operating at 100 kHz with SiC MOSFETs requiring precise Miller plateau control. IC Role / Device Role / Timing Role: LM5134AMF/NOPB's matched delay between IN/INB inputs and tightly controlled tPD-ON/tPD-OFF ensures clean transition across Miller region-suppressing false turnon during dV/dt transients. Use Value: Reduces PFC stage switching loss by 18% compared to standard gate drivers, improving full-load efficiency from 96.1% to 96.8%. | Use Scenario: GaN-based LLC resonant converter in telecom rectifier demanding <10 ns propagation delay and 5-V gate drive compliance. IC Role / Device Role / Timing Role: LM5134AMF/NOPB operates at 5-V VDD to match GaN gate limits while delivering 4.5-A source/7.6-A sink-enabling <15 ns total gate drive loop time including PCB trace delays. Use Value: Supports 1 MHz+ operation with <3% duty-cycle distortion, increasing power density by 35% over conventional 650-V Si MOSFET solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-side gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC27524ADRV | Single 5-A sink / 5-A source output; no PILOT output; 15-V max VDD; 13 ns typical tPD; no UVLO clamp | Lacks complementary pilot output-requires external circuitry for local turnoff; unsuitable for ultra-low-inductance turnoff-critical designs | Select when only main gate drive is needed and board space permits discrete turnoff FET control |
| LM5112MYX/NOPB | 7-A sink / 5-A source; dual outputs (OUT/OUTB); no PILOT; 12-V max VDD; 10 ns tPD; includes enable pin | Provides mirrored outputs but no timing-shifted complementary drive-cannot replicate LM5134AMF/NOPB's built-in turnoff sequencing | Choose for dual-N-channel half-bridge drive where synchronized turnon/turnoff is required, not local turnoff enhancement |
Compared with UCC27524ADRV and LM5112MYX/NOPB, LM5134AMF/NOPB uniquely delivers integrated, time-coordinated PILOT functionality-eliminating layout complexity and component count for high-reliability turnoff path implementation in motor drives and PFC converters.
Availability
LM5134AMF/NOPB is available at Aetrix Electronics and suitable for motor drivers, solid-state power controllers, and power factor correction converters requiring stable component supply, long-term lifecycle assurance, and TI-qualified automotive-grade reliability.
Supply support for LM5134AMF/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company designing analog ICs, embedded processors, and power management solutions for industrial, automotive, and communications markets.
The LM5134AMF/NOPB belongs to TI's high-speed gate driver product line, engineered specifically for high-efficiency, high-frequency power conversion systems where minimizing gate-loop inductance and ensuring robust turnoff behavior are critical design objectives.
FAQ
What is the function of the PILOT output in LM5134AMF/NOPB?
The PILOT output in LM5134AMF/NOPB is a complementary gate drive signal timed to activate an external low-RDS(on) MOSFET placed physically adjacent to the main power FET. This creates a localized, low-inductance turnoff path that reduces gate-loop impedance-critical for suppressing false turnon during high-dV/dt switching events. LM5134AMF/NOPB guarantees precise delay coordination (tPD-ON = 4.2 ns, tPD-OFF = 6.4 ns at VDD = 10 V) between PILOT and OUT to prevent shoot-through.
Does LM5134AMF/NOPB support both TTL and CMOS logic inputs?
LM5134AMF/NOPB supports TTL/CMOS-compatible inputs, but the specific threshold type depends on the variant: LM5134A uses CMOS thresholds (VIH = 0.67×VDD, VIL = 0.33×VDD), while LM5134B uses fixed TTL thresholds (VIH = 2.4 V, VIL = 0.8 V). LM5134AMF/NOPB is the LM5134A variant. Both versions tolerate up to 14 V on IN/INB regardless of VDD, enabling direct interface with diverse controller families without level-shifting circuitry.
How does the UVLO feature operate in LM5134AMF/NOPB?
LM5134AMF/NOPB incorporates an undervoltage lockout (UVLO) circuit that disables output drive when VDD falls below 3.25 V (min) and re-enables at 3.61 V (typ), providing 0.36-V hysteresis. During UVLO, the IN/INB inputs are ignored, and an internal PNP transistor actively clamps the OUT pin to ≤1 V-ensuring the driven power FET remains fully off even during partial power-up or brownout conditions. This behavior is confirmed in Section 7.3 of the LM5134 datasheet.
What package options are available for LM5134AMF/NOPB?
LM5134AMF/NOPB is offered exclusively in the 6-pin WSON (NGG) package with 3.00 mm × 3.00 mm body size and an exposed thermal pad. Unlike the base LM5134 family-which also includes SOT-23 (DBV)-the AMF/NOPB suffix denotes the WSON variant. The exposed pad must be soldered to a PCB ground plane to achieve the specified RθJA = 60 °C/W and ensure reliable operation at full 7.6-A peak current.
Can LM5134AMF/NOPB drive GaN power devices?
Yes, LM5134AMF/NOPB is suitable for driving enhancement-mode GaN HEMTs requiring ≤6-V gate drive, thanks to its 4-V to 12.6-V VDD operating range and ability to deliver 4.5-A peak source current at low VDD. Its fast propagation delays (tD-ON = 17 ns typ at VDD = 10 V), tight input-to-output matching, and PILOT output for local turnoff make it effective in GaN-based high-frequency converters. However, users must verify gate voltage limits per specific GaN device datasheet-LM5134AMF/NOPB itself does not regulate VDD and relies on external supply design.
LM5134AMF/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Low-Side
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 4V ~ 12.6V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- 4.5A, 7.6A
- Input Type:
- Inverting, Non-Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- 3ns, 2ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
LM5134AMF/NOPB FAQ
1.How can I place an order for LM5134AMF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM5134AMF/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM5134AMF/NOPB reliable?
The price and inventory of LM5134AMF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM5134AMF/NOPB is usually 5 days.
3.What payment methods are accepted for LM5134AMF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM5134AMF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM5134AMF/NOPB?
LM5134AMF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM5134AMF/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM5134AMF/NOPB?
For technical support, including LM5134AMF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM5134AMF/NOPB requirements.
6.How does Aetrix verify that LM5134AMF/NOPB is sourced from the original manufacturer or authorized distributors?
All LM5134AMF/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM5134AMF/NOPB meets industry standards.
7.What is the process for return or replacement of LM5134AMF/NOPB?
All LM5134AMF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM5134AMF/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM5134AMF/NOPB part is unused and in its original packaging.
Return procedure for LM5134AMF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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